2001/02/14 by S. I. Bityukov, N. V. Krasnikov
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Gaugino #Gluino #Large Hadron Collider #Minimal Supersymmetric Standard Model #Neutrino Physics Research #Pair production #Particle physics theoretical and experimental studies #Physics beyond the Standard Model #Superpartner #Supersymmetry #hep-ph
paper · pdf · doi:10.1134/1.1495646
published as Phys.Atom.Nucl. 65 (2002) 1341-1351; Yad.Fiz. 65 (2002) 1374-1384 · 1 latex (35 pages), 4 eps (figures) files
arxiv created 2001/02/14 · openalex publication_date 2002/07/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We investigate squark and gluino pair production at LHC (CMS) with subsequent decays into quarks, leptons, and the lightest supersymmetric particles (LSP) in models with effective supersymmetry, where the third generation of squarks is relatively light, whilst the first two generations of squarks are heavy. We consider the general case of nonuniversal gaugino masses. The visibility of a signal through an excess over Standard Model background in (n≥2) jets+(m≥0) leptons+E T miss events depends rather strongly on the relation between the LSP, second-neutralino, gluino, and squark masses and decreases with increasing LSP mass. We find that, for a relatively heavy gluino, it is very difficult to detect a SUSY signal even for light third-generation squarks (m q3 \leqslant 1TeV) if the LSP mass is close to the third-generation squark mass.